/Engine/Plugins/Experimental/Water/Source/Runtime/Public/WaterBodyComponent.h
[UFUNCTION](Programming/UnrealArchitecture/Reference/Functions)(BlueprintCallable, Category=Rendering) void SetWaterAndUnderWaterPostProcessMaterial ( [UMaterialInterface](API\Runtime\Engine\Materials\UMaterialInterface) * InWaterMaterial, [UMaterialInterface](API\Runtime\Engine\Materials\UMaterialInterface) * InUnderWaterPostProcessMaterial )